code: def optimizer_func(lr=0.01):
      return F.optimizer.AdamOptimizer(learning_rate=lr)
  
imports: import math
  import math
  import ssl
  from sklearn.metrics import roc_auc_score
  import torch
  import paddle
  import pgl
  import numpy
  import paddle.fluid
  import paddle.fluid.layers
  from pgl.contrib.ogb.nodeproppred.dataset_pgl import PglNodePropPredDataset
  import time
  import copy
  from ogb.nodeproppred import Evaluator
  import pickle
  from model import Proteins_baseline_model, Proteins_label_embedding_model
  from partition import RandomPartition
  from cross_edge_feat import cross_edge_feat
  from dataset.random_partition_dataset import RandomPartition
  import os
  import argparse
  from tqdm import tqdm
label_desc: Use image node_id 4 for calling a global function with example usage: optimizer_func(lr) and returns: F